论文部分内容阅读
多级轴流式压气机研制过程中要求测量各截面的温度,以了解温度场的分布,求取温升效率。压气机流路内温度测量的特点是:气流马赫数较高、级温升小、级与级之间的轴向间隙小;气流在流路内的流动比较复杂,不仅沿叶栅的径向和切向有变化,而且沿气压机轴向有衰减;特别在转子后,气流参数沿栅距作周期性变化。如何测准流路内某一点或某一截面的气流温度,值得探讨。
Multi-stage axial compressor during the development of the measurement of the cross-section of the temperature required to understand the distribution of the temperature field, temperature and efficiency. Compressor flow path temperature measurement is characterized by: Mach Mach number higher, the temperature rise is small, the axial gap between the level and small; flow in the flow of the flow is more complicated, not only along the radial direction of the cascade And tangential changes, but also along the air compressor axial attenuation; especially after the rotor, the air flow parameters along the pitch for periodic changes. How to measure a certain point in the flow path or a cross-section of the air temperature, it is worth discussing.